Universal joint.



P. M. YOUNG.

UNIVERSAL JOINT.

APPLICATION FILI-1D MAB.. 2B, 1912. 1, 1 1 1,781 Patented sept. 29, 1914.

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im TED STATES PATENT oEEioE.

PRESTON M. YOUNG, OF JACKSON, MICHIGAN.

'UNIVERSAL JOINT.

To all whom it may concern:

Be it known that I, PRESTON M. YOUNG, a citizen of the United States, residing at Jackson, Michigan, have invented certain new and useful Improvements in Universal Joints, of which the following is a specification.

This invention relates to improvements in universal joints.

The main objects of this' invention are: First, to provide an improved universal joint which is very strong and durable and-which is at the same time simple and compact in structure. Second, toprovide an improved universal joint in which the bearing surfaces between the parts are of a relatively large area and one in which this area of bearing surface or contact is not materially lessened by the Wearing of the joint. Third, to provide an improved universal joint in which the bearing members are eifectively incased. Fourth, to provide an .improved universal join in which the bearings are effectively lubricated.

Further objects, and objects relating' to structural details, will definitely appear from the detailed vdescription 'to follow.

I accomplish the objects of my invention by the devices and means described .in the following specification. The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a side elevation of a structure embodying the features of my invention with the casing members 16 and 17 shown in Fig. II is a detail side elevation of the structure shown in Fig. I turned one-quarter way around, the casing members 16 and 417 being' shown in central longitudinal section. Fig. III is a transverse section taken on a line correspo-nding to line 3-3 of Fig. I. Fig. IV is a central longitudinal section taken on a line corresponding to line 4-4 of Fig. II', through the parts of the member 2 disconnected or separated, the better to show their form. 'Fig'. V is a side elevation of the cou-l pling member 10. Fig. VI is a central longitudinal section corresponding to that of Fig. IV of the members 1, 14, 16 and 17 separated to better illustrate their form. Fig. VII is a detail longitudinal section taken on a line corresponding to line 7--7 of driven member.

Specioation of Letters Patent. Patented Sept, 29, 1914.

Application led March 28, 1912. Seri'al No. 686,854.

Fig. III. Fig. VIII is a perspective View of the coupling member 10. Fig. IX is a perspective view' of the bearing member 14. In thedrawing, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction o'f the litt-le arrows at the ends of the'section lines. Referring to the drawing, the structure illustrated comprises shaft members 1 andv 2, one of which is the driving and the other the Either maybe made the driving member. The member 2 is provided with a detachablehead 3, while the head 4 of the member 1 is, in the structure illus- ,trated, formed integrally therewith. The i head 3 is disk-like in form and is secured to' ;bers have curved bearing surfaces 12 coacting with the bearings between the arms 7 coacting with the bearings 11. The sides of the cross arms are provided with bearing surfaces c-oacting with the sides of the bearing slots 8. v

For convenience in manufacture, the shaft member 1 is provided with bearing members 13 having bearing surfaces 12 therein. These bearing members 13'are supported by the block 14 which is arranged in the transverse slot 15in the member 1.

The parts are held in their assembled relation and incased by the casing member 16 which is threaded upon the head 3. The

lmember 16embraces the spherically curved collar-like casing member 17 which is sleeved upon the member *1 to engage the head 4. The member 16 is provided with the gasket 18, which is seated in a groove 19, as clearly shown in the drawings. With the parts thus arranged, the power is transmitted from the driving and the driven member through the coupling member, both members xpivoting about thecenter of the coupling member on the bearings 11. The drive is transmitted through the cross arms which provide a relatively large bearing surface which is not materially changed lor modified by wearing of the joints. The parts vare effectively incased and the casing forms an ei'ective lubricant l receptacle.

I have embodied the same.

provements are capable as such variations Ieo will be undoubtedlyreadily understood by those skilled in the art to which this invention relates. I desire, however, to be understood as claiming the same specifically in the form illustrated, as well as broadly within the scope of the appended claims.

Having thus described my invention, what Iclaim as new and desire to secure by Letters Patent is:

1. In a universal joint, the combination of the driving and driven members each .having a pair of arms provided with longitudinal slot-like bearings and curved bearing surfaces between the arms, anda coupling member having transversely dlsposed curved bearings coacting with the bearing surfaces between the arms of said driving and driven members andV pairs of flat ra, dially disposed cross arms disposed in said slot-like bearings of said driving and driven member arms.l

2. In a universal oint, the combination of the driving and drlven members each having a pair of longitudinally slotted arms and curved bearing surfaces between the arms, and a coupling member having transversely disposed curved bearings at its ends coacting with said bearing surfaces between the arms of said driving and driven members and pairs of radially disposed cross arms engaging the said slots thereof. 3. In a universal joint, the combination of the driving and driven members, each provided with a pair of arms and curved.

bearing surfaces between the arms, the arms being longitudinally slotted, and a couplingmember having curved bearings at its ends coacting with the bearing surfaces between said driving and driven member arms and pairs of Hat radially disposed cross arms engaging said slots of said driving and driven members, the sides of the cross arms being in bearing engagement with the sides of the slots.

4. In a universal joint, the combination of the driving and driven members, and a coupling member having pairs of radially disposed cross arms engaging said driving and driven members and transversely disposed cylindrically curved segmental end bearings, said driving and driven'members being provided with cylindrically curved thereof.

5. In a universal joint, the combination `of the driving and driven members each having a pair of arms provided with longitudinal slot-like bearings and curved bearing surfaces between the arms, and a coupllng member having pairs of radially disposed cross arms disposed in said slot-like bearings of said driving and driven member arms and curved end bearings coacting with the bearing surfaces between the arms of said driving and driven members.

6. In a universal joint, the combination of the driving and driven members, each having a pair of arms provided with longitudinal` slot-like bearings and -cylindrically curved bearing surfaces between the arms, the slot-like bearings of one member being disposed at right angles to those of the other member, and a coupling member .having pairs of {iatradially disposed cross arms isposed in said slot-like bearings of said driving and driven member arms, and cylindrically curved end bearings coacting with the cylindrically curved bearing surfaces between the arms of said driving and driven members, said end bearings being continued at the'sides of the coupling member arms, the curve of one end bearing being at right angles to the curve of the other.

7. In a universal joint, the combination of the driving and driven members, a spherical casing member on one of said members, an adjustable shell on the other member embracing said casing member and having bearing engagement therewith, and a coupling member having transversely disposed curved end bearings and pairs of ra' dially disposed bearing arms, each of said driving and driven members being provided with curved bearing seats for said bearings and longitudinal slot-like bearings for said coupling member arms.

8. In a universal joint, the combination l cross arms coacting with the slot-like bearings of said driving andl driven member arms.

9. In a universal joint, the combination of the driving and driven members each having fork-like arms provided with longitudinal slot-like bearings and inwardly curved bearing surfaces between the arms, a coupling member having transversely-disposed, outwardly curved bearings coacting :with the bearing surfaoes between the arms of said driving and driven members and pairs of flat radially-disposed cross arms disposed in said slot-like bearings of said driving and driven member arms, the arms of said driving and driven members and of said coupling member being disposed in the v same transverse plane, and a easing member carried by one of the said driving and driven members and having bearing engagement with the other whereby the parts are retained in their operative relation, said casing being adjustable, for the purpose specified.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

PRESTON M. YOUNG. [1.. 5.]

Witnesses:

J. LEWIS PELHAM, Louis BOBINE. 

